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If a volcano is near oceanic crust subducted under continental crust would its eruption be explosive or quiet?
Oceanic crust being subducted under continental crust will have a great deal of water in it. The rise in temperature as the plate is subducted at depth will cause a great amount of steam to be compressed within the melting rock.The steam will gradually rise and create enormous pressures on the volcanic plug, creating a dome. With enough pressure accumulation, the dome will be shattered. Rapidly expanding gasses within the rising magma could result in an explosive event as the gas seeks escape.
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What subduction of oceanic crust under continental crust predominantly produces volcanic eruption?
violent and explosive
When an oceanic plate collides with a continental plate which plate is subducted?
When an oceanic plate and a continental plate collide, the oceanic plate is always subducted. Oceanic plates are denser than continental plates, and they have a higher iron content. Since they are denser, oceanic plates always sink below the continental plate in the event of a collision.
What are the three different setting of convergent boundaries?
Oceanic-continental: Oceanic plate is subducted beneath continental plate, creating volcanic arcs and mountain ranges. Oceanic-oceanic: One oceanic plate is subducted beneath another, forming deep ocean trenches and volcanic island arcs. Continental-continental: Collision of two continental plates, leading to intense folding and faulting, creating high mountain ranges.
Why are continental volcanoes associated with oceanic continental convergent boundaries?
Continental volcanoes form at oceanic-continental convergent boundaries because as oceanic plates are subducted beneath continental plates, the subducted oceanic crust melts due to the high temperatures and pressures deep within the Earth. This molten rock then rises to the surface, resulting in volcanic eruptions on the continental plate.
When does a plate carrying continental crust converges with a plate carrying oceanic crust?
When a plate carrying continental crust converges with a plate carrying oceanic crust, the denser oceanic plate is typically subducted beneath the less dense continental plate. This can lead to the formation of volcanic arcs and deep ocean trenches.
What subduction of oceanic crust under continental crust predominantly produces volcanic eruption?
violent and explosive
When an oceanic plate collides with a continental plate which plate is subducted?
When an oceanic plate and a continental plate collide, the oceanic plate is always subducted. Oceanic plates are denser than continental plates, and they have a higher iron content. Since they are denser, oceanic plates always sink below the continental plate in the event of a collision.
Why is an oceanic plate always subducted but not a continental plate?
Continental plates are lighter (less dense) than oceanic plates.
What are the three different setting of convergent boundaries?
Oceanic-continental: Oceanic plate is subducted beneath continental plate, creating volcanic arcs and mountain ranges. Oceanic-oceanic: One oceanic plate is subducted beneath another, forming deep ocean trenches and volcanic island arcs. Continental-continental: Collision of two continental plates, leading to intense folding and faulting, creating high mountain ranges.
What do one oceanic and one continental crust produce when the oceanic crust is subducted under the continental one?
A trench and a strata volcano.
Why is oceanic lithosphere subducted while continental lithosphere is not?
The density of the continental (granitic) lithosphere is lower than oceanic (basaltic) lithosphere. Consequently, due to buoyancy, the continental crust rides above the oceanic lithosphere and thus is not subducted. However, it is thought that pieces of the continental lithosphere break off and are subducted along with the oceanic lithosphere.
Why are continental volcanoes associated with oceanic continental convergent boundaries?
Continental volcanoes form at oceanic-continental convergent boundaries because as oceanic plates are subducted beneath continental plates, the subducted oceanic crust melts due to the high temperatures and pressures deep within the Earth. This molten rock then rises to the surface, resulting in volcanic eruptions on the continental plate.
Where slab of oceanic lithosphere are subducted under continental lithosphere?
Oceanic lithosphere is subducted under continental lithosphere at convergent plate boundaries. This process occurs when the denser oceanic plate sinks beneath the less dense continental plate, creating deep ocean trenches and volcanic arcs. The subducted oceanic plate eventually melts and contributes to the formation of magma that leads to volcanic activity.
When does a plate carrying continental crust converges with a plate carrying oceanic crust?
When a plate carrying continental crust converges with a plate carrying oceanic crust, the denser oceanic plate is typically subducted beneath the less dense continental plate. This can lead to the formation of volcanic arcs and deep ocean trenches.
Why is oceanic lithosphere subducted during and oceanic continental collision where as the continental plate is not?
Oceanic lithosphere is denser than continental lithosphere, so it is more likely to be subducted during a collision. The downward force exerted by the dense oceanic plate causes it to sink beneath the less dense continental plate. Furthermore, oceanic lithosphere is typically thinner and more malleable, making it easier to be forced beneath the continental lithosphere.
What happens when continental and oceanic lithospheres collide?
When oceanic lithosphere and continental lithosphere collide, the continental lithosphere may be obducted over the oceanic lithosphere or the oceanic lithosphere may be subducted under the continental lithosphere. The latter is thought to be more common. This subduction and obduction generally results in tectonic activity such as volcanoes and earthquakes.
What plates create a volcanic arc?
An oceanic plate being subducted under a continental plate.
